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Nuvoton M031EC1AE function introduction


M031EC1AE is a low operating voltage microcontroller based on Arm® Cortex®-M0 core with 32-bit hardware multiplier/divider. The operating frequency is up to 48 MHz, the operating voltage is 1.8 V ~ 3.6 V, and it is equipped with 32 KB Flash and 4 KB SRAM.

With its special designed performance, such as 2 MSPS ADC, 96 MHz PWM, 24 MHz SPI, 6 MHz UART. It can be applied to industrial control and consumer applications, allowing voltage, current and sensor data to be quickly and accurately converted, and quickly respond to and control external modules, such as current or voltage feedback from motor control or sensing equipment.

M031EC1AE also provides a large number of peripherals, including 3 sets of UART, 1 set of SPI / I²S, 2 sets of I²C, 9 channels of 12-bit ADC, 6 channels of 16-bit PWM, etc., which can meet various application requirements. It can work in a wide temperature range from-40 °C to + 105 °C. All series of the same package are Pin to Pin compatible.

Application areas:

Laser rangefinder

Air detector/cleaner

LCD panel controller

Mini printer

WPC wireless charger


Key features:

• Operational characteristics

 -Operating voltage: 1.8V to 3.6V

 -Working temperature:-40 ℃ to 105 ℃

 -EFT 4.4 kV

 -ESD HBM 6 kV


• Core (Core)

 -Arm® Cortex®-M0, working frequency up to 48 MHz

 -32-bit hardware multiplier/divider


• Memory (Memory)

 -32 KB Flash


 -2 KB Flash for user program loader (LDROM)

 -512 Bytes/2 KB SPROM (Security Protection ROM)


Support program update method:

Online system update ISP (In-System Programming)

Online circuit update ICP (In-Circuit Programming)

Online application update IAP (In-Application Programming)


• Clock control

 -External 4 ~ 32 MHz high-speed crystal oscillator

 -Internal 48 MHz high-speed oscillator (HIRC48) full temperature error 2%

 -Internal 38.4 KHz low speed crystal oscillator (LIRC)


• Timers (Timers)

 -4 32-bit timers

 -1 24-bit countdown SysTick timer


• Pulse width modulation (PWM)

 -6 channels 96 MHz 16-bit PWM


• Analog (ADC)

 -9-channel 12-bit ADC with a conversion rate of 2 MSPS


• Direct memory access (PDMA)

 -2-channel direct memory access (PDMA)


• Cyclic Redundancy Check (CRC)

 -CRC-CCITT, CRC-8, CRC-16 and CRC-32


• Communication interface (Connectivity)

 -Two sets of high-speed 6 MHz UART

 -A set of universal UART

 -Two sets of high-speed 1 MHz I²C

 -A set of high-speed 24 MHz SPI /I²S

 -23 GPIO (except analog pins, 5 V I / O allowed)


• 96-bit unique identifier (UID)


• 128-bit unique customer identifier (UCID)


• Package

 -TSSOP28 (4.4x9.7mm)

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